Hook



FIG. 1 is a bottom, right side and rear perspective view of a hook showing my new design;

FIGS. 2 and 3 are respectively right and left elevational views thereof;

FIGS. 4 and 5 are respectively front and rear elevational views thereof; and

FIGS. 6 and 7 are respectively top and bottom plan views thereof. 

The ornamental design for a hook, as shown and described. 